Unit UTE9806+ User manual

User’s Manual
UTE9806+ Smart Digital Power Meter

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Preface
Thank you for purchasing this brand new UNI-T product. In order to use this product safely and correctly,
please read this manual thoroughly, especially the safety notes.
After reading this manual, it is recommended to keep the manual at an easily accessible place, preferably
close to the device, for future reference.
Copyright Information
Copyright is owned by Uni-Trend Technology (China) Limited.
UNI-T products are protected by patent rights in China and foreign countries, including issued and pending
patents.
UNI-T reserves the rights to any product specification and pricing changes.
UNI-T reserves all rights. Licensed software products are properties of Uni-Trend and its subsidiaries or
suppliers, which are protected by national copyright laws and international treaty provisions. Information in
this manual supersedes all previously published versions.
UNI-T is the registered trademark of Uni-Trend Technology (China) Co., Ltd.
Warranty Service
UNI-T warrants that the product will be free from defects for one year. If the product is re-sold, the warranty
period will be from the date of the original purchase from an authorized UNI-T distributor. Probes, other ac-
cessories, and fuses are not included in this warranty.
If the product is proved to be defective within the warranty period, UNI-T reserves the rights to either repair
the defective product without charging of parts and labor, or exchange the defected product to a working
equivalent product. Replacement parts and products may be brand new, or perform at the same specifica-
tions as brand new products. All replacement parts, modules, and products become the property of UNI-T.
The “customer” refers to the individual or entity that is declared in the guarantee. In order to obtain the war-
ranty service, "customer" must inform the defects within the applicable warranty period to UNI-T, and to per-
form appropriate arrangements for the warranty service. The customer shall be responsible for packing and
shipping the defective products to the designated maintenance center of UNI-T, pay the shipping cost, and
provide a copy of the purchase receipt of the original purchaser. If the product is shipped domestically to the
location of the UNI-T service center, UNI-T shall pay the return shipping fee. If the product is sent to any
other location, the customer shall be responsible for all shipping, duties, taxes, and any other expenses.
Guarantee Limit
This warranty shall not apply to any defects or damages caused by accidental, machine parts’ wear and tear,
improper use, and improper or lack of maintenance. UNI-T under the provisions of this warranty has no obli-
gation to provide the following services:

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a) Any repair damage caused by the installation, repair, or maintenance of the product by non UNI-T service
representatives.
b) Any repair damage caused by improper use or connection to an incompatible device.
c) Any damage or malfunction caused by the use of a power source which does not conform to the require-
ments of this manual.
d) Any maintenance on altered or integrated products (if such alteration or integration leads to an increase
in time or difficulty of product maintenance).
This warranty is written by UNI-T for this product, and it is used to substitute any other express or implied
warranties. UNI-T and its distributors do not offer any implied warranties for merchant ability or applicability
purposes.
For violation of this guarantee, regardless of whether UNI-T and its distributors are informed that any indi-
rect, special, incidental, or consequential damage may occur, UNI-T and its distributors shall not be respon-
sible for any of the damages.
Safety Instructions
To avoid possible electric shock and personal safety problem, please follow the instructions below. Uni-
Trend will not be responsible for the personal safety and property damage caused by the user's failure to
comply with the following terms.
1. Do not usethe damaged instrument. Before using, please check the outer shell whether has crack or plastic
lack. Do not use the instrument in flammable and explosive gas, steam or dusty environment.
2. Only trained personnel can execute maintain procedure to avoid fire and personal injury; there must be
personnel supervision in use, otherwise it should be turned off the instrument and its power supply.
3. Before connecting the instrument, observe all marks on theinstrument to learn more about the rated value,
warnings and Notes.
4. The power supply of the instrument is 100-240VAC, 50/60Hz.
5. The instrument is equipped with three core power cord, only use the power cord provided by the manufac
turer to avoid accidental injury; do not plug and unplug the power cord when the instrument is energizing;
do not put other objects on the power cable when using it, and ensure that the power cable is away from
heat source.
6. Instrument grounding：To prevent the risk of electric shock, please connect the power ground wire.
7. Do not install substitutes or perform unauthorized changes; donot use theinstrument whenthe outer shell
opened or looseness.
8. During the test, do not touch terminal blocks and test line to prevent from electric shock; do not plug the

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communication port; do not put article on the instrument to protect the instrument, especially pay atten-
tion not to let metal chips, water, oil and other liquids into the internal the interior of the instrument, oth-
erwise, it may cause unpredictable and serious consequences.
9. Avoid exposed circuits, do not touch exposed connectors and components after the power is turned on.
10. Use the appropriate fuse, only with the fuse type and rating indicator specified for this product.
11. Do not use the instrument that work abnormally; if you suspect that the product has malfunctioned, let
qualified maintenance personnel to check the instrument.
12. Unplug the power cord from the power outlet if the instrument is not to be used for a long time. Please do
not pull the power cord to unplug it; if the instrument need to move, please make sure the power line and
other connecting line is pulled out and use the carrying handle on the side of the instrument, be gentle
with it to prevent collision.
Environmental Condition
The instrument can only use indoors and non-condensing area, the general environmental requirements
shown as below table.
Environmental Condition
Operating Environment
5℃～40℃，20%～80%RH（non-condensing）
Accuracy guaranteed temper-
ature and humidity tempera-
ture
23℃±5℃，30%～75% R.H.
Storage temperature
-10℃～50℃, non-condensing below 80% R.H.
Operating altitude
≤2000 meters
Explanation：In order to ensure the measurement accuracy, it is recommended to start the operation after
half an hour to warm-up the machine.

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Chapter 1 Inspection and Installment
1.1 Check Packing List
Check with packing list to confirm that accessories has no loss or abnormal. If there have any problem,
please contact with UNI-T distributor or manufacture.
No.
Components
Quantity
Remark
1
Digital power meter
1
UTE9806+
2
Power cord
1
3
RS-232 communication
line
1
4
User’s manual
/
Please download from official website.
http://www.uni-trend.com
Explanation：After confirming that the contents of the packageare consistent and there are no problems,
please keep the box and related contents properly, the instrument should meet the encasement require-
ments if it return to the factory for service.
1.2 Hand Shank
The hand shank can be adjustment, hold the hand shank in both hands and then pull out two flanks to twist
it, it can be adjust to four positions shown as the following figure.
1. Original Position (Factory Setting)

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2. Testing Position
3. Remove Hand Shank
4. Lift Position

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Chapter 2 Product Introduction
2.1 Product Overview
UTE9806+ smart digital power meter is an economic and portable measuring instrument. It is a multi-func-
tional measuring instrument which integrating voltage, current, power, active power, apparent power, power
factor, voltage peak, current peak, voltage frequency and current frequency. The products is widely used in
production, testing, evaluation and scientific research and multi-field.
UTE9806+ smart digital power meter adopts high speed CPU for data processing, the sampling resistance of
voltage and current are all use low temperature drift resistor, therefore, the stability and accuracy of meas-
urement data are guaranteed.
The instrument can measure voltage, current, power, active power, apparent power, power factor, voltage
peak, current peak, voltage frequency and current frequency.
The instrument has perfect functions, superior performance and simple operation. It meets the needs of
high-speed measurement in production sites, as well as laboratory and R&D measurements. It is widely used
in in the fields of lighting appliances, power tools, household appliances, electric motors and electric heating
appliances of production lines, laboratories and quality inspection departments.
Characteristics
1. VA broken code screen display for intuitive reading.
2. Multi-window simultaneous display of voltage, current, power, active power, apparent power, power fac-
tor, voltage peak, current peak, voltage frequency and current frequency.
3. Measurement parameter of each window can be switched. It designs for user to set the reading order by
custom.
4. Voltage and current range can switch by auto and manual.
5. Average filter function can make the reading more stable and it suitable for measuring the load or power
supply with large variations.
6. Data update cycle can be set. User can select a faster upgrade period according to the test needs, so as
to improve the test efficiency.
7. Communication interface supports RS-232 and RS-485. Communication protocol supports SCPI and
Modbus for communicating with computer and PLC.
8. It can freely set the upper and lower limit of current and power, the digital power meter will automatic
judge whether the test value is exceed. Sound and light alarm indication, it is convenient for batch detec-
tion to improve the measurement efficiency.
9. Operating power supports AC 100V~240V, frequency 50/60Hz.

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2.2 Technical Index
Note：f represent the frequency of input signal in the below table.
Model
UTE9806+
Remarks
Display
VA broken code display, 5 digits，four win-
dows
Accuracy guarantee
range of voltage/cur-
rent: range of
1%~10%.
Display Update Rate
0.1S, 0.25S, 0.5S, 1S, 2S, 5S
Measuring Object
V, A, W, VA, PF, HZ, Vpeak, Apeak
Measuring Mode
AC
Measuring Range of Voltage
0.5V-600V
Voltage Range
60V/600V
Accuracy of Voltage
40Hz≤f≤66Hz ：±( 0.4% reading+ 0.1 range+1
character )
66Hz≤f≤400Hz：±( 0.3% reading+ 0.2 range+1
character )
Voltage Resolution
0.01V/0.1V
Measuring Range of Current
0.05mA~10A
Current Range
0.05A/0.1A/10A
Accuracy of Current
40Hz≤f≤66Hz ：±( 0.4% reading+ 0.1 range+1
character )
66Hz≤f≤400Hz：±( 0.3% reading+ 0.2 range+1
character )
Current Resolution
0.1mA/0.1 mA/1 mA
Switching Range
Auto/Manual
Power Range
1W~6000W
Accuracy of Power
40Hz≤f≤66Hz ：±( 0.4% reading+ 0.1 range+1
character ）
66Hz≤f≤400Hz：±( 0.3% reading+ 0.2 range+1
character )
Voltage value is higher
than range of 10%.
Current value is higher
than range of 1%.

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Power Resolution
0.001W/0.01W/0.1W/1W
Power Factor Range
-1.000~1.000
Accuracy of Power Factor
± 0.01
Measuring Range of Fre-
quency
40Hz~400Hz
Voltage value is higher
than range of 10%.
Current value is higher
than range of 10%.
Accuracy of Frequency
±0.1% reading
Auto Range
Switching
Voltage Range
Increasing
Measured value exceeds the measuring range
about 120 %.
Voltage Range
Decreasing
Measured value is less than the lower part
range about 100 %.
Current Range
Increasing
Measured value exceeds the measuring range
about 120 %.
Current Range
Decreasing
Measured value is less than the lower part
range about 100 %.
Pre-heating Time
>30 minutes
Current Peak
The maximum display 12A
Maximum of Allowed Input for
Continuous
Voltage 720V，Current 12A
Maximum of Allowed Input for
Instant
1000V, 20A (1 minute)
Input Impedance
Voltage about 2 MΩ，Current is less than
0.02Ω
Upper/Lower limit
Upper/Lower limit of voltage (U)
Upper/Lower limit of current (I)
Upper/Lower limit of active power (P)
Upper/Lower limit of apparent power (VA)
Upper/Lower limit of power factor (PF)
Alarm Delay
√

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Average Function
√
Interface
RS232（DB9 ; 2-pin: TX, 3-pin: RX, 5-pin:
GND）
RS485 (DB9 ; 8-pin: A , 9-pin: B )
Baud Rate
1200，2400，4800, 9600, 19.2K，38.4K，
57.6K，115.2K，default 9600.
It follows communication protocol of standard
SCPI and Modbus.
Display Hold
√
Mute Key
√
Lock Key
√
Power Source
Input power：AC 100V~240V
Frequency 50/60Hz
Precision Environment
18℃~28℃，30%~75%RH (28℃< operating
temperature <18℃(when in 18℃, it needs to
add temperature coefficient)：reading of
0.005%/℃）
Storage Temperature
-10℃~50℃，non-condensing below 80% RH
Operating Altitude
≤2000 meters
General Characteristic
Color
Gray
Weight
3.2kg
Size
214mm×88mm×340mm
Standard Accessories
Specialized power cord x1
RS232 serial port line x1
Optional Accessories
UTE-L10A 10A three-pronged plug convert
banana head plug connection cable x1

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UTE-L16C 16A connection cable with alliga-
tor clip x1
UTE-L16A 16A three-pronged plug convert
banana head plug connection cable x1
Standard Packing Quantity
2
Standard Packing Size
400mm*300m*325mm
Gross Weight of Standard
Packing
9kg
2.3 Front Panel
The front panel and function of UTE9806+, as shown in the following figure.
2.3.1 Key function on the front panel
Key Function
Symbol
Description
Power Switch
Press one time to turn “ON”, the power source is enabled, press
it again to turn “OFF”, the power source is disabled.
Left, Right Key
Number editing: Use left, right key to select the data bit that
need to be edited.
Up, Down Key
Menu editing: Use up, down key to select function item.
Number editing: Use up, down key to increase or decrease the
numerical value.
Enter Key
OK
Save the currently setting.
Hold Key
Hold
Data hold key for keep display the current data.
When in setup page, press Hold key can return to the previous.
Mute Key
Mute
Mute key indicates the key sound is muted (blue indicator is illu-
minated indicates the mute key is enabled.)

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A Key
A
Switching the measurement parameter of Window A (V/A/W/VA)
B Key
B
Switching the measurement parameter of Window B (V/A/W/PF)
C Key
C
Switching the measurement parameter of Window C
(V/A/W/±Vpk/±Apk）
D Key
D
Switching the measurement parameter of Window D (V/A/W/V
Hz/A Hz/PF）
Setup Key
Setup
Press Setup key to enter the setting menu of average filter and
display the update cycle.
Shift Key
Shift
Secondary functionauxiliary key：Shift +A to enter voltage range
setting；Shift + B to enter current range setting；Shift + Setup
to enter the secondary menu setting; Shift + Hold to move deci-
mal point to right（only valid when number editing）.
Lock Key
LOCK
Press this key and the indicator will be illuminated, it indicates
other key cannot be used. Long press to unlock the key and the
indicator will be extinguished.
2.3.2 Display and Symbol
Display and Symbol
Description
A,B,C,D four windows can be simultaneous measurement
Window A can measure V, A, W, VA；
Window B can measure V, A, W, PF；
Window C can measure V, A, W, ±Vpk, ±Apk；
Window D can measure V, A, W, V Hz, A Hz, PF.
Update symbol of measured data / refresh symbol of display
Alarm Symbol
A-OL: It indicates the measurement value of current ex-
ceeds 12A or the measurement value exceeds 120% of the
currently measurement range.
V-OL：It indicates the measurement value of voltage ex-
ceeds 720V or the measurement value exceeds 120% of the
currently measurement range.
NG: It indicates the measurement range is not within the
range.
PASS：It indicates the measurement range is in the range.

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The display data is RMS.
The measured parameter in the current window is RMS volt-
age.
The measured parameter in the current window is RMS cur-
rent.
The measured parameter in the current window is active
power.
The measured parameter in the current window is apparent
power.
The measured parameter in the current window is power
factor.
The measured parameter in the current window is voltage
peak (maximum, minimum).
The measured parameter in the current window is current
peak (maximum, minimum).
The measured parameter in the current window is voltage
frequency.
The measured parameter in the current window is current
frequency.
2.4 Digital and Character Display
The data display format of data display window is nixie tube. Due to the limitation of the format, special
symbols are needed to represent each character, as shown in the following figure.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
1
2
3
4
5
6
7
8
9
0

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2.5 Rear Panel
The rear panel and function of UTE9806+, as shown in the following figure and table.
No.
Picture of parts
Description
1
Under test load/LOAD terminal, it usually used to connect to the in-
put port of the product to be test.
2
Under test input terminal /SOURCE terminal，it usually used to con-
nect to the output port of AC power.
3
Three-wire power socket and fuse
4
Ground terminal
5
RS232/RS485 communication interface
Chapter 3 Operating Preparation and Measurement
Display
3.1 Operating Preparation
3.1.1 Connecting Power Cable
The operating voltage of the instrument is 100V~240V (50/60Hz), please make sure the power supply is within
the rated voltage of this instrument, and make sure the instrument is well grounded.
Warning: Please make sure that the power supply voltage matches the supply voltage before turning on the
power supply, otherwise the instrument will be burned out.
Notes: The instrument should be used under the recommended working conditions. Never use the instru-
ment in a place where have flammable or explosive materials, it may cause safety injuries.

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3.1.2 Connecting Test Circuit
Please follow the following figure to connect the power and load, and make sure voltage and current is
within the measurement range of the instrument.
Warning:
1. The load current flows along the thick wire in the above diagram, so these wires should have a large
enough safe load capacity.
2. The power supply of the load and the power supply of the instrument should be turned off when wiring
at the load end.
Notes:
1）When measuring large current/voltage or the current includes high frequency, it should pay attention
to possible mutual interference and noise problems when wiring.
2）The lead wire should as short as possible.
3）Use heavy gauge wire as can as possible when measuring current.
4）To reduce the distributed capacitance to ground, the wire and grounding wire should be as far away
from the instrument housing as possible.
3.1.3 Turn ON/OFF Power Supply
Turn on：Start self-check program when the instrument is enabled, the instrument will enter the measuring
state if the check result is correct.
Turn off：The upper/lower limit of current and power will be saved when the power has been turned off.
Notes：After turn off the power, wait for 5 seconds to turn on again, otherwise the instrument may abnormally
display.
3.1.4 Power-on Measurement
Firstly, plug in the power socket on the rear panel, and use the specified voltage, the power socket should be
with a ground wire. After checking the wiring is connect rightly, turn on the instrument switch located at the
front panel, and the instrument will enter the measurement state. Apply power to the load and read out the
required measurement value from the display on the front panel of the instrument after the load has been
working stably.

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Notes: The instrument should be preheated for 30 minutes before entering the stable state. After cutting off
the instrument power, it should wait for more than 5 seconds before powering it on again. It is strictly forbid-
den to switch the power on and off repeatedly within a short period of time, which will cause the instrument
life to shorten and may cause instrument failure. When the measurement is finished, turn off the instrument
power and unplug it to prevent possible damage to the instrument caused by lightning strikes.
3.1.5 Boot-up
1. The instrument will self-inspection and display three interfaces when it boot up. The first interface is
to light up all segment codes of LCD and all key indicators (some segment codes that are lit up are not
used in this model, it subject to the actual function). UTE9806+ has four keys with indicator, which is
【Mute】,【Shift】,【Lock】，as shown in the following figure.
2. The second interface displays system information, including firmware and hardware version as shown
in the following figure.
F-1.00 represents firmware version. H-1.00 represents hardware version.
3. The third interface displays the system communication information, including baud rate, communi-
cation address and communication protocol, as shown in the following figure.
Baud Rate：9600 Communication Address 000 Communication Protocol：SCPI

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3.2 Measurement Display
3.2.1 Window Display
UTE9806+ has four display windows, it can display different measurement value at the same time and the
parameter of each window can be switch freely, as shown in the following table. (Tick“√”indicates the window
can measure the parameter. Cross“×”indicates the window cannot measure the parameter.)
Parame-
ter
Window
V
(Volt-
age)
A/mA
(Cur-
rent)
W
(Active
Power)
VA
(Ap-
parent
Power)
PF
(Power
Factor)
V pk
(Voltage
Peak)
A pk
(Current
Peak)
V Hz
(Volt-
age
Fre-
quency)
A Hz
(Cur-
rent
Fre-
quency)
A
√
√
√
√
×
×
×
×
×
B
√
√
√
×
√
×
×
×
×
C
√
√
√
×
×
√
√
×
×
D
√
√
√
×
√
×
×
√
√
The following figure shows the display interfaces of the four display windows (Take the measurement of elec-
trical parameters when the voltage is 220V, the current is 1A and the power factor is 1 as an example).
3.2.2 Alarm for Over Range
These situations will be regarded as over range.
1. The measured value of voltage exceeds 120% of the rated range.
2. The measured value of current exceeds 120% of the rated range.
Fixed (manual) range measurement: “--OL-”will be displayed in the measurement window if the meas
ured value exceeds 120% of the range, and "V-OL" indicator will be displayed for voltage over range, and
"A-OL" indicator will be displayed for current over range.
Automatic range measurement: When the measured value exceeds 120% of the range, the measure
ment range will be automatically switched. When the range switches to the maximum range, “--OL-”will
be displayed in the measurement window if the measured value exceeds 120% of the range, and "V-OL"
indicator will be displayed for voltage over range, and "A-OL" indicator will be displayed for current over
range.

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3.2.3 Alarm for Lower Measured Value
The alarm will be appear if the measured value of voltage is less than 0.5V or the measured value of cur-
rent is less than rated value 0.1%.
1. Voltage, current, power displays “0”.
2. Power factor displays “-----”.
3.2.4 Hold (Data-Hold)
Press Hold key and the indicator will be illuminated, the measurement value will keep display and the
data will not refresh. Press it again, the indicator will be extinguished and the data will be update.
3.2.5 Lock (Lock Key)
To prevent from error operating during measurement, lock key function can set other key be invalid
(Lock state). Press Lock key and the indicator will be illuminated. This key will be no response. It need to
long press Lock key for 1s and the indicator will be extinguished. After that, the key will turn to enable
state.
3.2.6 Mute (Mute Key)
For key operation of the instrument on different occasions, UTE9806+ set the mute key function, press
【Mute】key before any key operation and then it will not have the key sound, the blue key indicator
indicates that the key mute function has been enabled, press the key mute again to disable the function.

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Chapter 4 Measurement
4.1 Average Filter
·Steps
1. Press【SETUP】key to enter SETUP menu，press【▲】or【▼】key to select submenu“AVG”as
shown in the following figure；
2. Press【OK】key toenter the next option,and the press【▲】or【▼】key to switch OFF, ON, DATA;
3. Press【OK】key to select the currently selected option and save the setting；
4. If the third step is select DATA then it enters next menu setting, press【▲】or【▼】key to switch
8, 16, 32, 64 and then press【OK】key to select the currently selected option and save the setting;
5. Press【▲】or【▼】key to select other submenu or press【SETUP】key to exit SETUP menu.
·Explanation
OFF represents AverageOFF (the average function is disabled). ON represents the average function is
enabled, 8, 16, 32, 64 represents the number of average.
Average
The average method is moving average, it is for power supply or load with great variation or the nu-
merical value display is unstable and reading is difficult when the frequency of input signal is low.
Executing average measurement function as follows,
(1) U, I, P, S, Q ;
(2) λis calculated by the average value of Urms, Irms, P, S and Q.
*Notes: Q (reactive power) is only for the operation, it will not show on the display interface.
Moving Average
According to the following formula, use the specifiedaverage number to calculating themoving average.

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4.2 Data Update Cycle
·Steps
1. Press【SETUP】key to enter SETUP menu，press【▲】or【▼】key to select submenu“u.rate”as
shown in the following figure；
2. Press【OK】key to enter the next option, and the press【▲】or【▼】key to switch 0.1, 0.25, 0.5,
1, 2, 5;
3. Press【OK】key to select the currently selected option and save the setting；
4. Press【▲】or【▼】key to select other submenu or press【SETUP】key to exit SETUP menu.
·Explanation
The data update cycle is the update interval of the sampled data of the measurement function.
The data update cycle can set to 0.1s, 0.25s, 0.5s, 1s, 2s or 5s. The default is 0.25s.
4.3 Measurement Range
4.3.1 Manual Range
If the measurement range is set to manual range, the selected range will not be change even if the size
of input signal changes.
The manual range can select from the following options.